How do i find the interval of increase and decrease on a graph? i've tried everything online but nothing pops up
screenshots attached

The answer is the second option, increase (1,infinity) and decrease (negative infinity,1)

Look at the x axis, not y

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,